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CJMCU 122 Capacitive Touch Keypad Module Header Pins:Without Soldered Pins The LilyPad Arduino consists of MEC6002 M3 The LilyPad Arduino consists of an ATmega328 with the Arduino bootloader and a minimum number of external components to keep it as small (and as simple) as possible or it may be burned) The MPR121 capacitive keyboard uses the MPR121 and 12 touch sensitive pads to give a simple 'keyboard' with an output i2C The card also has four mounting holes that allows it to be used as an input system in place of the traditional buttons These keyboards function to measure the capacity of twelve points When an object approaches for the connector it measures capacity changes
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